Tabular State Forecast
Issued by NWS
Issued by NWS
468
FPUS63 KILX 202105
SFTIL
ILZ001>013-015>021-023>108-211000-
Tabular State Forecast for Illinois
National Weather Service Lincoln IL
405 PM CDT Thu Aug 20 2026
ROWS INCLUDE...
Daily predominant daytime weather 6AM-6PM
Forecast temperatures...early morning low/daytime high
Probability of precipitation nighttime 6PM-6AM/daytime 6AM-6PM
- indicates temperatures below zero
MM indicates missing data
FCST FCST FCST FCST FCST FCST FCST
Fri Sat Sun Mon Tue Wed Thu
Aug 21 Aug 22 Aug 23 Aug 24 Aug 25 Aug 26 Aug 27
...Northwest IL...
Moline/Rock Island
Tstrms Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
63/83 64/81 59/77 58/77 61/80 65/82 63/80
00/50 40/00 00/00 00/10 10/10 30/30 10/10
Sterling/Rock Falls
Tstrms Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
59/81 62/79 57/76 55/76 58/79 63/81 61/79
10/70 70/00 00/00 00/10 10/10 30/30 20/10
...North central IL...
DeKalb
Tstrms Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
57/79 62/78 56/75 54/75 57/78 63/79 62/79
00/50 60/10 10/00 00/00 00/10 30/30 20/10
Rockford
Tstrms Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
58/80 62/79 56/76 54/76 57/79 63/81 61/80
00/70 70/10 10/00 00/00 00/10 30/30 20/10
...Northeast IL...
Aurora
Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy
58/79 63/78 58/75 56/75 58/78 63/79 63/79
00/30 60/10 10/00 00/00 00/00 30/30 20/10
Chicago Downtown
Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy
63/81 66/78 64/73 62/75 63/79 66/80 67/78
00/10 50/10 10/00 00/00 00/00 30/30 20/10
Chicago O`Hare
Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy
61/81 65/79 61/76 59/77 61/80 66/81 65/80
00/20 50/10 10/00 00/00 00/00 30/30 20/10
Joliet
Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy
59/80 64/79 60/76 56/75 59/78 64/80 64/80
00/20 60/10 10/00 00/00 00/00 30/30 20/20
Kankakee
Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy
56/79 63/78 58/75 54/75 57/78 63/81 63/79
00/10 50/10 10/00 00/00 00/00 20/20 20/20
Waukegan
Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy
59/80 63/78 59/73 57/74 59/78 64/79 63/77
00/30 60/10 10/00 00/00 10/10 30/30 20/10
...West central IL...
Jerseyville
Sunny Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy
61/84 66/83 61/81 60/79 62/84 66/85 64/84
00/00 10/10 10/00 00/10 20/20 30/20 10/10
Macomb
Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
60/82 64/80 59/77 58/77 60/80 65/81 63/80
00/10 20/10 10/00 00/10 10/10 20/20 10/10
Quincy
Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
63/86 67/82 62/80 62/79 64/84 67/84 65/83
00/00 20/10 10/00 00/10 10/10 20/20 10/10
...Central IL...
Decatur
Sunny Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy
59/82 64/81 59/78 57/78 59/81 64/83 63/82
00/00 20/10 00/00 00/00 00/00 20/20 20/10
LaSalle/Peru
Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
58/80 63/79 59/75 56/76 59/79 64/80 63/79
00/30 50/00 00/00 00/00 10/10 30/30 20/20
Peoria
Sunny Sunny Sunny Ptcldy Sunny Ptcldy Sunny
60/82 65/81 60/77 58/77 61/80 65/82 64/81
00/20 40/00 00/00 00/00 10/10 20/20 20/20
Pontiac
Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
57/81 64/79 58/76 55/76 58/79 63/81 63/80
00/10 50/00 00/00 00/00 10/10 20/20 20/20
Springfield
Sunny Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy
60/84 66/83 61/80 59/80 62/83 66/85 64/84
00/10 20/10 00/00 00/10 10/10 30/20 20/10
...East central IL...
Champaign/Urbana
Ptcldy Ptcldy Sunny Ptcldy Sunny Ptcldy Ptcldy
58/81 64/80 59/77 56/76 58/80 64/82 63/81
00/00 30/00 00/00 00/00 00/00 20/20 20/20
Charleston/Mattoon
Sunny Ptcldy Sunny Sunny Sunny Ptcldy Sunny
59/82 64/82 59/79 57/78 59/82 64/84 63/83
00/00 30/10 10/00 00/00 00/00 20/20 20/10
...Southwest IL...
Belleville
Sunny Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy
64/86 69/85 64/82 61/82 64/86 68/87 67/86
00/00 00/10 10/00 00/10 20/20 20/20 20/10
Chester
Sunny Ptcldy Sunny Ptcldy Ptcldy Ptcldy Sunny
63/84 66/84 63/81 61/80 63/84 66/86 66/85
10/00 00/10 10/00 00/20 20/20 20/20 10/10
...South central IL...
Carbondale
Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
66/85 66/86 64/83 62/83 63/86 66/88 66/87
10/00 00/10 10/00 00/10 20/20 20/20 20/10
Centralia
Sunny Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy
63/85 66/84 62/82 60/81 62/84 66/87 66/86
00/00 10/10 10/00 00/10 10/10 30/30 10/10
Mount Vernon
Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy
63/86 65/86 62/83 59/82 61/86 65/88 65/87
00/00 10/10 10/00 00/10 20/20 20/20 10/10
...Southeast IL...
Lawrenceville
Sunny Ptcldy Sunny Sunny Sunny Ptcldy Ptcldy
64/84 65/85 62/82 58/81 60/84 65/87 66/86
20/00 20/10 10/00 00/00 00/00 20/20 20/10
$$